exam ch 10 Flashcards
if the cross from #1 is continued, what would be the expected outcome in the F2 generation
3 tall 1 short
if a plant that has round seeds has a parent that has wrinkled seeds, what is its genotype (assume round is dominate)
Rr
this principle states that alleles separate during gametes formation:
principle of independent assortment
if you crossed two heterozygous plants, how many of the offspring will also be heterozygous
half
a plant that has purple flowers is crossed with one that has white flowers. the offspring were half white and half purple. what were the genotypes of the parents
Pp x pp
a dihybrid cross (AaBb x AaBb) will result in what offspring ration?
9:3:3:1
phenotype refers to an organisms:
physical appearance
in each case where mendel crossed true breeding plants as parents, the offspring displayed only one of the two traits see. in the parents. the observation supports which principle of genetics?
dominance and recessiveness
two true breeding parents are crossed similar to mendels P generation. A tall plant is crossed with a short plant. what is the expected outcome for the F1 generation
all tall
which of the following outcomes would you expect from the following cross: tall, round (TTRR) x short, wrinkled (ttrr)
9:3:3:1
meiosis results in____
4 haploid daughter cells
which of the following cells undergo meiosis?
sperm cells
crossing over occurs during:
prophase 1
meiosis is a type of cell division that produces:
gametes
which of the following distinguishes prophase 1of meiosis from prophase of mitsois
homogenous chromosomes paired up
a cell w a diploid number 24 undergoes meiosis, how many chromosomes are in each daughter cell
12
meiosis
gametes are products by the process of what?
sperm
the cells resukting from a male are called what?
haploid cells
unlike. mitosis, meiosis results in the formation of what
which symbol is used to represent the number of chromosomes in a gamete?
n
name the person known as the “father of genetics”
gregor mendel
which term refers to the outward expression of an allele pair
phenotype
segments of dna that control the production of proteins is called
genes
what is the term for a pair of chromosomes that have the same length same center-mere position and carry genes that control the same traits
homologous
